Bush has displayed marvelous hands out of the backfield and shows no lingering effects from a broken leg that robbed him of two straight seasons. Coach Lane Kiffin is more focused on Bush's interior running.

"I don't know yet if he's what you want him to be at 245 pounds, for him to be a big-time bruiser that can pound the ball for you," Kiffin said. "That's what we've got to see."

Kiffin went on to say Fargas is the "best runner by far" in regards to decision-making and execution. Top draft choice Darren McFaddenis "the most talented guy" who hits home runs and runs the best routes.

Q: How are the offensive tackles holding up?

A: Not so great when it comes to pass protection.

New left tackle Kwame Harrisis still learning the new blocking scheme, and at times it showed during 11-on-11 drills. Returning right tackle Cornell Greenstruggled to contain edge rusher Derrick Burgess.

As for second-year tackle Mario Henderson, he remains a work in progress who must become more physical, Kiffin said. Consider this an area of concern.

Q: So, the pass rush is improving?

A: Burgess is good as ever, and second-year defensive end Jay Richardsonis coming on.

Richardson played the run as a rookie but rarely stayed on the field for passing downs. He's now staying on the field longer and getting after the quarterback.

"We're giving him a shot to take that," Kiffin said. "Jay knows that's where he needs to improve to play more."

Kaufman, who left football after the 2000 season and became a pastor, gives McFadden the edge in size after attending one practice.

"I obviously appreciate his speed and his elusiveness, his versatility," said Kaufman, who chatted with McFadden afterward. "He's a little bit more physical than I probably was. He's a bigger guy."

Briefly: The Raiders have not made a move regarding running back LaMont Jordan, who wasn't allowed to attend the minicamp as his agent pursues trade possibilities. ... Fullback Oren O'Neal(knee) and rookie receiver Arman Shields(hamstring) were the only players to miss practice due to injury. ... Kiffin expects most the team to return for workouts next week. ... McFadden's agent, Ian Greengross, had contract negotiations with team officials for the second straight day. Several sources from both sides are hopeful a deal could be struck well before training camp begins July 26.